Home / 107,789.82-161,753.91-72,291.24

Finding the Fourth Proportional to 107,789.82, 161,753.91 and 72,291.24

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Solution

The fourth proportional to 107,789.82, 161,753.91 and 72,291.24 is: 108,483.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,789.82 : 161,753.91 = 72,291.24 : x
  2. Step 2: Convert to fraction form
    107,789.82/161,753.91 = 72,291.24/x
  3. Step 3: Cross multiply
    107,789.82x = 161,753.91 × 72,291.24
  4. Step 4: Simplify right side
    107,789.82x = 11,693,390,728.75
  5. Step 5: Solve for x
    x = 11,693,390,728.75/107,789.82
  6. Step 6: Final answer
    x = 108,483.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.